Acquisition of European Differentiated Surfactants business - Additional Information (Detail) - Huntsman [Member] - USD ($)		3 Months Ended	12 Months Ended
	Dec. 30, 2016	Sep. 30, 2017	Dec. 31, 2017
Business Acquisition [Line Items]
Business acquisition, consideration transferred	$ 200,200,000
Decrease in goodwill			$ 23,100,000
Final working capital adjustments		$ 2,600,000
Goodwill amortizable for tax purpose			$ 0